Five northern dynasties and several regional centres
After Tang ended in 907, Later Liang, Later Tang, Later Jin, Later Han and Later Zhou successively controlled the northern political core. Armies, revenue and succession repeatedly affected stability, but the transitions were not identical coups. Relations with Khitan power also reshaped northern politics.
Regional states such as Wuyue and Southern Tang had their own histories. Song’s foundation in 960 marks a major northern transition, not the simultaneous disappearance of every other polity.
Cities and livelihoods during political division
Some southern regions continued developing waterworks, farming, crafts and trade, leaving important legacies in cities such as Hangzhou. The south was not universally free of war. Regional conflict and the costs of government also mattered to decisions made by Qian Liu and the Wuyue rulers.
Economic connections could cross borders or be interrupted by warfare. Comparing regional experiences explains conditions later inherited by Song without reducing the period to an entirely violent north and a uniformly prosperous south.
Texts and officials across changing regimes
The official printing of the classics associated with Feng Dao spanned changes of regime, demonstrating continuity in scholarship, printing and administrative personnel. Printed editions widened circulation; they did not mean printing had just been invented or that textual variation ceased.
Later Zhou reforms and early Song arrangements built on existing experience in military and fiscal administration. The period left both the damage of warfare and institutions, cities and networks of knowledge that subsequent governments could use. It was not an empty interval between Tang and Song.
